Some fixes submitted on master branch are also desired on other Tiki major versions. Each Tiki major version is also a branch, so backport means get a change present on master branch and submit it on other branch. Example, get a commit from master and submit on 19.x.
This page is the Git equivalent of: Merge a commit between branches
The best tool to achieve this procedure is the git cherry-pick.
Example
Folder structure
The next example assumes an existing folder named tiki19 with versioned by Git and another folder tikimaster, also versioned by Git. The tiki19 is tracking branch 19.x while tikimaster folder is tracking branch master.
| . | .. | tikimaster | tiki19
1. Getting commit and message
Type git log, search for commit to be backported, copy it's hash and assign it to a variable name TARGET_COMMIT.
TARGET_COMMIT=1f0d6c95b936aeface9a4d7bf4d2a5b18782d1e7 TARGET_MESSAGE=$(git log $TARGET_COMMIT -n1 --format='%B')
2. Get SVN revision
It is needed to look for the SVN revision number to satisfy the commit message standards required by Tiki community. An useful command to list the last 5 entries from svn is:
svn log svn://svn.code.sf.net/p/tikiwiki/code/trunk -l 5
Write down the revision number.
TARGET_REV=r69552
3. Update repository
cd tiki19 git pull
4. Cherry-pick commit
git cherry-pick $TARGET_COMMIT
5. Rephrase the message
Follow Tiki standards to commit messages https://dev.tiki.org/Commit-Tags.
git commit --amend -m "[bp/${TARGET_REV}]${TARGET_MESSAGE}"
6. Push it to 19.x
git push
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;){kind=link}
;){kind=link}
;){kind=link}